-q, --quiet Don't emit non-error messages to stderr. Errors
are still emitted, silence those with
2>/dev/null.
- --pyi Consider all input files typing stubs regardless
+ --pyi Consider all input files typing stubs regardless
of file extension (useful when piping source on
standard input).
--py36 Allow using Python 3.6-only syntax on all input
files. This will put trailing commas in function
signatures and calls also after *args and
**kwargs. [default: per-file auto-detection]
+ -S, --skip-string-normalization
+ Don't normalize string quotes or prefixes.
--version Show the version and exit.
--help Show this message and exit.
```
imports cannot fit in the allotted length, it's always split into one
element per line. This minimizes diffs as well as enables readers of
code to find which commit introduced a particular entry. This also
-makes *Black* compatible with [isort](https://pypi.org/p/isort/).
+makes *Black* compatible with [isort](https://pypi.org/p/isort/) with
+the following configuration.
+
+<details>
+<summary>A compatible `.isort.cfg`</summary>
-If you do wish to use *Black* alongside `isort`, you can pass the following
-command-line arguments to ensure compatible behaviour:
-```
-$ isort --multi-line=3 --trailing-comma --force-grid-wrap=0 --line-width=88 [ file.py ]
-```
-Or use the equivalent directives in your isort config:
```
+[settings]
multi_line_output=3
include_trailing_comma=True
force_grid_wrap=0
+combine_as_imports=True
line_length=88
```
+The equivalent command line is:
+```
+$ isort --multi-line=3 --trailing-comma --force-grid-wrap=0 --combine-as --line-width=88 [ file.py ]
+```
+</details>
+
### Line length
You probably noticed the peculiar default line length. *Black* defaults
It will also insert proper spacing before and after function definitions.
It's one line before and after inner functions and two lines before and
-after module-level functions. *Black* will not put empty lines between
-function/class definitions and standalone comments that immediately precede
-the given function/class.
+after module-level functions and classes. *Black* will not put empty
+lines between function/class definitions and standalone comments that
+immediately precede the given function/class.
+
+*Black* will enforce single empty lines between a class-level docstring
+and the first following field or method. This conforms to
+[PEP 257](https://www.python.org/dev/peps/pep-0257/#multi-line-docstrings).
+
+*Black* won't insert empty lines after function docstrings unless that
+empty line is required due to an inner function starting immediately
+after.
### Trailing commas
key. My recommendation here is to keep using whatever is faster to type
and let *Black* handle the transformation.
+If you are adopting *Black* in a large project with pre-existing string
+conventions (like the popular ["single quotes for data, double quotes for
+human-readable strings"](https://stackoverflow.com/a/56190)), you can
+pass `--skip-string-normalization` on the command line. This is meant as
+an adoption helper, avoid using this for new projects.
+
### Line breaks & binary operators
- Arguments: $FilePath$
5. Format the currently opened file by selecting `Tools -> External Tools -> black`.
- - Alternatively, you can set a keyboard shortcut by navigating to `Preferences -> Keymap`.
+ - Alternatively, you can set a keyboard shortcut by navigating to `Preferences -> Keymap -> External Tools -> External Tools - Black`.
### Vim
## Change Log
-### 18.5b1 (unreleased)
+### 18.6b0
+
+* added `--skip-string-normalization` (#118)
+
+
+### 18.5b1
* added `--pyi` (#249)
* Python grammar pickle caches are stored with the formatting caches, making
*Black* work in environments where site-packages is not user-writable (#192)
+* *Black* now enforces a PEP 257 empty line after a class-level docstring
+ (and/or fields) and the first method
+
* fixed invalid code produced when standalone comments were present in a trailer
that was omitted from line splitting on a large expression (#237)
a trailer that was omitted from line splitting on a large expression
(#238)
+* fixed extra empty line between a class declaration and the first
+ method if no class docstring or fields are present (#219)
+
+* fixed extra empty line between a function signature and an inner
+ function or inner class (#196)
+
### 18.5b0
* [Ivan Katanić](mailto:ivan.katanic@gmail.com)
* [Jelle Zijlstra](mailto:jelle.zijlstra@gmail.com)
* [Jonas Obrist](mailto:ojiidotch@gmail.com)
+* [Luka Sterbic](mailto:luka.sterbic@gmail.com)
* [Miguel Gaiowski](mailto:miggaiowski@gmail.com)
* [Osaetin Daniel](mailto:osaetindaniel@gmail.com)
* [Sunil Kapil](mailto:snlkapil@gmail.com)